Matthew Henry Commentary 1 Samuel 15:32-35

"Then said Samuel, Bring ye hither to me Agag the king of the Amalekites. And Agag came unto him cheerfully. And Agag said, Surely the bitterness of death is past. And Samuel said, As thy sword hath made women childless, so shall thy mother be childless among women. And Samuel hewed Agag in pieces before Jehovah in Gilgal. Then Samuel went to Ramah; and Saul went up to his house to Gibeah of Saul. And Samuel came no more to see Saul until the day of his death; for Samuel mourned for Saul: and Jehovah repented that he had made Saul king over Israel." — 1 Samuel 15:32-35 (ASV)

Many think the bitterness of death is past when it has not truly gone; they put that evil day far out of mind, though it is actually very near.

Samuel calls Agag to account for his own sins. He followed the example of his ancestors' cruelty; therefore, all the righteous blood shed by Amalek is justly required. Saul seems unconcerned by the sign of God's displeasure that he was under, yet Samuel mourns day and night for him. Jerusalem was carnally secure while Christ wept over it.

Do we desire to do the whole will of God? Then turn to Him, not in form and appearance, but with sincerity.